Trabalho docente e sofrimento mental: um estudo em uma escola pública do Estado de São Paulo

Pós-graduação em Serviço Social - FCHS

O cuidado em saúde mental e o agir em rede: como se agencia um caso de intensa complexidade?

Pós-graduação em Psicologia - FCLAS

A saúde mental do trabalhador: estudo sobre os afastamentos por transtornos mentais

Pós-graduação em Planejamento e Análise de Políticas Públicas - FCHS

Visual-somatosensory interactions in mental representations of the body and the face

The body is represented in the brain at levels that incorporate multisensory information. This thesis focused on interactions between vision and cutaneous sensations (i.e., touch and pain). Experiment 1 revealed that there are partially dissociable pathways for visual enhancement of touch (VET) depending upon whether one sees one’s own body or the body of another person. This indicates that VET, a seeming low-level effect on spatial tactile acuity, is actually sensitive to body identity. Experiments 2-4 explored the effect of viewing one’s own body on pain perception. They demonstrated that viewing the body biases pain intensity judgments irrespective of actual stimulus intensity, and, more importantly, reduces the discriminative capacities of the nociceptive pathway encoding noxious stimulus intensity. The latter effect only occurs if the pain-inducing event itself is not visible, suggesting that viewing the body alone and viewing a stimulus event on the body have distinct effects on cutaneous sensations. Experiment 5 replicated an enhancement of visual remapping of touch (VRT) when viewing fearful human faces being touched, and further demonstrated that VRT does not occur for observed touch on non-human faces, even fearful ones. This suggests that the facial expressions of non-human animals may not be simulated within the somatosensory system of the human observer in the same way that the facial expressions of other humans are. Finally, Experiment 6 examined the enfacement illusion, in which synchronous visuo-tactile inputs cause another’s face to be assimilated into the mental self-face representation. The strength of enfacement was not affected by the other’s facial expression, supporting an asymmetric relationship between processing of facial identity and facial expressions. Together, these studies indicate that multisensory representations of the body in the brain link low-level perceptual processes with the perception of emotional cues and body/face identity, and interact in complex ways depending upon contextual factors.

Allocentric visual cues influence mental transformation of bodies

Identifying a human body stimulus involves mentally rotating an embodied spatial representation of one's body (motoric embodiment) and projecting it onto the stimulus (spatial embodiment). Interactions between these two processes (spatial and motoric embodiment) may thus reveal cues about the underlying reference frames. The allocentric visual reference frame, and hence the perceived orientation of the body relative to gravity, was modulated using the York Tumbling Room, a fully furnished cubic room with strong directional cues that can be rotated around a participant's roll axis. Sixteen participants were seated upright (relative to gravity) in the Tumbling Room and made judgments about body and hand stimuli that were presented in the frontal plane at orientations of 0°, 90°, 180° (upside down), or 270° relative to them. Body stimuli have an intrinsic visual polarity relative to the environment whereas hands do not. Simultaneously the room was oriented 0°, 90°, 180° (upside down), or 270° relative to gravity resulting in sixteen combinations of orientations. Body stimuli were more accurately identified when room and body stimuli were aligned. However, such congruency did not facilitate identifying hand stimuli. We conclude that static allocentric visual cues can affect embodiment and hence performance in an egocentric mental transformation task. Reaction times to identify either hands or bodies showed no dependence on room orientation.

Balancing the mind: vestibular induced facilitation of egocentric mental transformations

The body schema is a key component in accomplishing egocentric mental transformations, which rely on bodily reference frames. These reference frames are based on a plurality of different cognitive and sensory cues among which the vestibular system plays a prominent role. We investigated whether a bottom-up influence of vestibular stimulation modulates the ability to perform egocentric mental transformations. Participants were significantly faster to make correct spatial judgments during vestibular stimulation as compared to sham stimulation. Interestingly, no such effects were found for mental transformation of hand stimuli or during mental transformations of letters, thus showing a selective influence of vestibular stimulation on the rotation of whole-body reference frames. Furthermore, we found an interaction with the angle of rotation and vestibular stimulation demonstrating an increase in facilitation during mental body rotations in a direction congruent with rightward vestibular afferents. We propose that facilitation reflects a convergence in shared brain areas that process bottom-up vestibular signals and top-down imagined whole-body rotations, including the precuneus and tempero-parietal junction. Ultimately, our results show that vestibular information can influence higher-order cognitive processes, such as the body schema and mental imagery.

Spatial cognition, body representation and affective processes: the role of vestibular information beyond ocular reflexes and control of posture

A growing number of studies in humans demonstrate the involvement of vestibular information in tasks that are seemingly remote from well-known functions such as space constancy or postural control. In this review article we point out three emerging streams of research highlighting the importance of vestibular input: (1) Spatial Cognition: Modulation of vestibular signals can induce specific changes in spatial cognitive tasks like mental imagery and the processing of numbers. This has been shown in studies manipulating body orientation (changing the input from the otoliths), body rotation (changing the input from the semicircular canals), in clinical findings with vestibular patients, and in studies carried out in microgravity. There is also an effect in the reverse direction; top-down processes can affect perception of vestibular stimuli. (2) Body Representation: Numerous studies demonstrate that vestibular stimulation changes the representation of body parts, and sensitivity to tactile input or pain. Thus, the vestibular system plays an integral role in multisensory coordination of body representation. (3) Affective Processes and Disorders: Studies in psychiatric patients and patients with a vestibular disorder report a high comorbidity of vestibular dysfunctions and psychiatric symptoms. Recent studies investigated the beneficial effect of vestibular stimulation on psychiatric disorders, and how vestibular input can change mood and affect. These three emerging streams of research in vestibular science are—at least in part—associated with different neuronal core mechanisms. Spatial transformations draw on parietal areas, body representation is associated with somatosensory areas, and affective processes involve insular and cingulate cortices, all of which receive vestibular input. Even though a wide range of different vestibular cortical projection areas has been ascertained, their functionality still is scarcely understood.

The brain’s default state interacts with working memory processes in a complex and load-dependent manner

Recently, many studies about a network active during rest and deactivated during tasks emerged in the literature: the default mode network (DMN). Spatial and temporal DMN features are important markers for psychiatric diseases. Another prominent indicator of cognitive functioning, yielding information about the mental condition in health and disease, is working memory (WM) processing. In EEG studies, frontal-midline theta power has been shown to increase with load during WM retention in healthy subjects. From these findings, the conclusion can be drawn that an increase in resting state DMN activity may go along with an increase in theta power in high-load WM conditions. We followed this hypothesis in a study on 17 healthy subjects performing a visual Sternberg WM task. The DMN was obtained by a BOLD-ICA approach and its dynamics represented by the percent-strength during pre-stimulus periods. DMN dynamics were temporally correlated with EEG theta spectral power from retention intervals. This so-called covariance mapping yielded the spatial distribution of the theta EEG fluctuations associated with the dynamics of the DMN. In line with previous findings, theta power was increased at frontal-midline electrodes in high- versus low-load conditions during early WM retention. However, load-dependent correlations of DMN with theta power resulted in primarily positive correlations in low-load conditions, while during high-load conditions negative correlations of DMN activity and theta power were observed at frontal-midline electrodes. This DMN-dependent load effect reached significance during later retention. Our results show a complex and load-dependent interaction of pre-stimulus DMN activity and theta power during retention, varying over the course of the retention period. Since both, WM performance and DMN activity, are markers of mental health, our results could be important for further investigations of psychiatric populations.

Screening for complex healing processes and psychological intervention in injured individuals

Introduction Injured individuals face a high risk for the development of psychological symptoms such as depression or anxiety, which influences early return to work after an accident. So far, it is unclear to which extent early psychological interventions can improve the ability to return to work. Purpose of the study The aim of the study was to investigate whether an improvement of the treatment-triage (by the screening questionnaire work and health [FAB]) influences early return to work and well being in injured individuals. Methods The study sample consists of injured individuals with different mental health-related or work-related disabilities after an accident. Participants are included eight weeks after an accident. Participants are randomly assigned to the intervention or to the control group. The intervention is an individualized psychotherapy consisting of cognitive-behavioral therapy and work related topics in an individual setting. Well being and work related actors are assessed at baseline and after six months. Results The recruitment is still ongoing. The preliminary results of this randomized controlled study will be presented at the conference. Conclusion An individualized psychotherapy might have the potential to improve the rehabilitation process in injured individuals and improve the ability to return to work.

Elucidating underlying processes of psychometric intelligence: A comparison of behavioral response latency and P3 latency in a modified Hick reaction time paradigm

The mental speed approach explains individual differences in intelligence by faster information processing in individuals with higher compared to lower intelligence - especially in elementary cognitive tasks (ECTs). One of the most examined ECTs is the Hick paradigm. The present study aimed to contrast reaction time (RT) and P3 latency in a Hick task as predictors of intelligence. Although both, RT and P3 latency, are commonly used as indicators of mental speed, it is also known that they measure different aspects of information processing. Participants were 113 female students. RT and P3 latency were measured while participants completed the Hick task with four levels of complexity. Intelligence was assessed with Cattell's Culture Fair Test. A RT factor and a P3 factor were extracted by employing a PCA across complexity levels. There was no significant correlation between the factors. Commonality analysis was used to determine the proportions of unique and shared variance in intelligence explained by the RT and P3 latency factors. RT and P3 latency explained 5.5% and 5% of unique variance in intelligence. However, the two speed factors did not explain a significant portion of shared variance. This result suggests that RT and P3 latency in the Hick paradigm are measuring different aspects of information processing that explain different parts of variance in intelligence.

Source Memory for Mental Imagery: Influences of the Stimuli’s Ease of Imagery.

The present study investigated how ease of imagery influences source monitoring accuracy. Two experiments were conducted in order to examine how ease of imagery influences the probability of source confusions of perceived and imagined completions of natural symmetric shapes. The stimuli consisted of binary pictures of natural objects, namely symmetric pictures of birds, butterflies, insects, and leaves. The ease of imagery (indicating the similarity of the sources) and the discriminability (indicating the similarity of the items) of each stimulus were estimated in a pretest and included as predictors of the memory performance for these stimuli. It was found that confusion of the sources becomes more likely when the imagery process was relatively easy. However, if the different processes of source monitoring-item memory, source memory and guessing biases-are disentangled, both experiments support the assumption that the effect of decreased source memory for easily imagined stimuli is due to decision processes and misinformation at retrieval rather than encoding processes and memory retention. The data were modeled with a Bayesian hierarchical implementation of the one high threshold source monitoring model.

Fragile X mental retardation protein is translated near synapses in response to neurotransmitter activation

Local translation of proteins in distal dendrites is thought to support synaptic structural plasticity. We have previously shown that metabotropic glutamate receptor (mGluR1) stimulation initiates a phosphorylation cascade, triggering rapid association of some mRNAs with translation machinery near synapses, and leading to protein synthesis. To determine the identity of these mRNAs, a cDNA library produced from distal nerve processes was used to screen synaptic polyribosome-associated mRNA. We identified mRNA for the fragile X mental retardation protein (FMRP) in these processes by use of synaptic subcellular fractions, termed synaptoneurosomes. We found that this mRNA associates with translational complexes in synaptoneurosomes within 1–2 min after mGluR1 stimulation of this preparation, and we observed increased expression of FMRP after mGluR1 stimulation. In addition, we found that FMRP is associated with polyribosomal complexes in these fractions. In vivo, we observed FMRP immunoreactivity in spines, dendrites, and somata of the developing rat brain, but not in nuclei or axons. We suggest that rapid production of FMRP near synapses in response to activation may be important for normal maturation of synaptic connections.

O cuidado em saúde mental infantil na perspectiva de profissionais, familiares e crianças

Introdução: A preocupação e a incorporação da problemática da saúde mental infantil nas políticas públicas de saúde são recentes, assim como o desenvolvimento de ações voltadas a esse cuidado. Preconiza-se que essa atenção se proceda a partir de uma rede composta por serviços atuando de modo articulado a outros setores. Objetivo: Analisar os processos e as condições de produção de cuidados em saúde mental de criança na perspectiva do modo psicossocial na Rede de Atenção Psicossocial. Método: Pesquisa qualitativa, com referencial teórico-metodológico oriundo da Análise Institucional, desenvolvida por meio de Observação Participante em (1) espaços de articulação entre serviços de saúde, (2) Unidade Básica de Saúde e (3) Centro de Atenção Psicossocial Infantojuvenil (CAPSi) no município de Mauá, São Paulo. A Observação Participante permitiu reconhecer os procedimentos de cuidados no cotidiano dos serviços. Para aprofundamento da investigação, foram realizados Grupos Focais com profissionais da Estratégia de Saúde da Família e do CAPSi, com familiares de crianças que frequentam o CAPSi e com crianças usuárias do serviço. Os dados foram analisados e interpretados a partir de conceitos advindos da psicanálise winnicottiana, do modo de atenção psicossocial e da análise institucional. Resultados e Discussão: O interesse, o investimento político e o direcionamento das ações e da organização dos serviços, coerentes com a lógica de atenção psicossocial, têm propiciado um terreno fértil para a construção de práticas transformadoras de cuidado em saúde mental. A incorporação desse cuidado na Atenção Básica, ainda que apresente desafios e tensões entre o modelo instituído (departamentalizado em especialidades) e instituinte (saúde mental integrante da saúde geral), levou a mudanças nas ações e concepções dos profissionais. Contudo, o desenvolvimento de ações intersetoriais e a construção de uma rede ampliada de atenção têm sido limitados pela escassez de serviços e profissionais da rede e por diferentes concepções que atravessam o campo. Os participantes da pesquisa expressam visão conflitante em relação à concepção acerca de problemas de saúde mental e das expectativas quanto ao cuidado, sendo observada forte presença de uma cultura psiquiátrica, que se acentua nas falas dos familiares e na articulação com outros serviços, e uma inclinação a favor da atenção psicossocial, mais presente nas expressões dos profissionais. Nos serviços de saúde, há movimentos instituintes que enfatizam a integralidade da atenção, a interdisciplinaridade do cuidado, a multideterminação do processo saúde-doença, alinhados ao modo de atenção psicossocial. O acolhimento, o vínculo, a escuta e a confiança, importantes elementos do cuidado estão presente nas ações dos serviços. As intervenções terapêuticas têm sido desenvolvidas a partir da singularidade dos casos por meio de Projetos Terapêuticos Individuais, embora sejam consideradas aquém das necessidades das crianças, limitações advindas da escassez de profissionais e serviços da rede. Considerações Finais: Embora os serviços de saúde atuem na direção do cuidado alicerçado no modo psicossocial, eles têm atuado de forma pouco articulada com outros setores. A hegemonia da cultura psiquiátrica é um desafio a ser enfrentado. São urgentes ações que possam promover mudanças nessa cultura predominante e no imaginário social no que toca aos problemas de saúde mental e aceitação das diferenças.

Saúde mental e os novos paradigmas de cidadania e inclusão social na sociedade contemporânea

Este estudo tem por objetivo analisar as categorias de cidadania e inclusão social na política de desinstitucionalização nos sujeitos em sofrimento psíquico diante do processo de individualização na teoria social contemporânea. Assume como hipótese que a saída do hospital psiquiátrico por si só não garante a inclusão social e nem o livre exercício da cidadania. Considerado o objetivo desta pesquisa, optou-se por fazer uma pesquisa bibliográfica como procedimento metodológico. O material de estudo foi dividido em três conjuntos: (1) 56 artigos científicos, visando a compreender a visão da academia; (2) um conjunto de legislação, composto de 10 leis que implementaram a política de desinstitucionalização no Brasil e a reforma dos serviços de saúde psiquiátrica, visando a compreender as ações do Estado; (3) quatro Relatórios Finais das quatro Conferências Nacionais de Saúde Mental, para também compreender a participação da sociedade civil. Para a análise do material, utilizou-se uma combinação de duas técnicas complementares: leitura bibliográfica com a análise de conteúdo. Dentre os vários processos que caracterizam a sociedade contemporânea, optou-se por analisar a individualização que impacta nas formas de exercício da cidadania e na inclusão social. Na análise dos resultados da categoria de cidadania foram identificadas associações em relação à interdição civil, liberdade, moradia, saúde, trabalho, educação e participação política. Relacionadas à categoria de inclusão social foram identificadas as referências à família, estigma, laços sociais, autonomia, contratualidade e trabalho. Os resultados obtidos indicam que o campo da saúde mental não está em completa consonância com as transformações da sociedade contemporânea, o que provoca um descolamento da realidade social da própria politica de desinstitucionalização e, portanto, maior dificuldade para a efetiva inclusão social e o exercício da cidadania desses indivíduos.